PRESS RELEASE

F5 Networks Reports Inducement Grants Under NASDAQ Listing Rule 5635(c)(4)

PRESS CONTACTS

Nathan Misner
Sr. Director of Global Communications
F5 Networks
(206) 272-7494
n.misner@F5.com

Holly Lancaster
WE Communications
(415) 547-7054
hluka@waggeneredstrom.com

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SEATTLE--F5 Networks, Inc. (“F5”) (NASDAQ:FFIV) today announced that on November 1, 2013, the company issued a total of 43,256 restricted stock units (“RSUs”) to 19 employees who joined F5 in connection with the company’s acquisition of Versafe Ltd., a provider of web anti-fraud, anti-phishing, and anti-malware solutions. This acquisition was completed on September 17, 2013. The RSUs were granted as inducements to employment in accordance with NASDAQ Listing Rule 5635(c)(4). The RSUs will vest 25 percent on November 1, 2014, and the remaining 75 percent will vest in equal quarterly installments over the following three-year period thereafter, subject to the employee’s continued service relationship with the company. The grants will be subject to the terms and conditions of the F5 Networks, Inc. Versafe Acquisition Equity Incentive Plan.

About F5

F5 (NASDAQ: FFIV) makes apps go faster, smarter, and safer for the world’s largest businesses, service providers, governments, and consumer brands. F5 delivers cloud and security solutions that enable organizations to embrace the application infrastructure they choose without sacrificing speed and control. For more information, go to f5.com. You can also follow @f5networks on Twitter or visit us on LinkedIn and Facebook for more information about F5, its partners, and technologies.

F5 is a trademark or service mark of F5 Networks, Inc., in the U.S. and other countries. All other product and company names herein may be trademarks of their respective owners.

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This press release may contain forward looking statements relating to future events or future financial performance that involve risks and uncertainties. Such statements can be identified by terminology such as "may," "will," "should," "expects," "plans," "anticipates," "believes," "estimates," "predicts," "potential," or "continue," or the negative of such terms or comparable terms. These statements are only predictions and actual results could differ materially from those anticipated in these statements based upon a number of factors including those identified in the company's filings with the SEC.

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